Russell marvin



(No Model.)

R. MARVIN. BGGENTRIG.

No. 596,075. Patentedne. 28,1897.

C I F695 RUSSELL MARVIN, OF FINDLAY, OHIO, ASSIGNOR OF ONE-HALF TO S. N.E. PRIDDY, OF SAME PLACE.

ECCENTRIC.

SPECIFICATION forming part of Letters Patent No. 596,075, dated December28, 1897.

Application led July l, 1895. Renewed May 3, 1897. Serial No. 634,967.(No model.)

To all whom it may concern: Be it known that I, RUSSELL MARVIN, acitizen of the United States, residing at Findlay, in the county ofHancock and State of Ohio, have invented a new and useful Eccentric, ofwhich the following is a specification. My invention relates toimprovements in eccentric-s used for the transmission of power, in whichan eccentric inner wheel operating by revolution upon a proper inclosingbut non-rotating ring communicates thereto at all points an oscillatorymotion, so that it may be transmitted in any direction directly byattaching at any point in said ring a suitable Inechanical device forthe purpose desired.

The objects of my invention are, iirst, to make convenient thetransmission of the power developed by such oscillatoryv motion in anydirection in the plane of the eccentric; secondly, to provide afriction-roll bearing continuously lubricated between said eccentric andsuch inclosing ring, and, thirdly, to provide, when such mechanism isused in horizontal planes or in planes oblique to the horizon,

Va horizontal bearing between such eccentric wheel and'inclosing ring bymeans of travelers working upon aproper extension of said eccentricwheel and carrying the vertical load of said ring, and to so providesuch travelers as not to interfere with the continuous lubrication ofthe face of the friction-rolls through the inclosing flange of saidring. I attain these objects by means of the mechanism illustrated inthe accompanying drawings, which are here referred to and made a part ofthis specification, in which- Figure l is a plan view of the eccentricwheel from the upper side, with the frictionrolls upon it and theinclosing ring removed. Fig. 2 is a plan view of the lower side of theinclosin g ring; and Fig. 3 is a cross-section of the eccentric wheeland the inclosing ring when iitted together with the rolls in placebetween them, as in operation.

Similar letters refer to similar parts throughout the several views, andthe parts as shown are with reference to an eccentric in a horizontalplane.

In the various gures, A represents the entire eccentric wheel with itsvarious parts otherwise lettered, as noted below.

O is the eccentric axis or center.

In like manner B represents the inclosing rin g with its parts otherwiselettered. A, preferably cast solid, is provided with the flange F, theoutside face of which forms the bearing of A upon the friction-rolls D.Extending from the lower side of A and beyond the flange F is theprojection G, provided on its upper side with the oil-groove K, outsideof which is a suitable bearing O for the lower ends of the rolls D whenused in a horizontal position or in any position out of the vertical. Gralso has outside of the track O a suitable track L for the travelers E,which bear the vertical burden of the ring B, as hereinafter noted. B isprovided with the flange H upon its under side, the inside face of whichis its bearing on the rolls D. B is also provided with any convenientnumber of travelers E, preferably three, to carry its weight andminimize the friction of its contact with A. The travelers areconveniently hung upon axles mounted in H and in some convenientprojection, as N, through which axles pass oil-ducts M for lubricatingthe face of the rolls D. The upper horizontal part of B should extend infrom H far enough to cover the flange F of A, thus forming a chamberinclosing the friction-rolls D, holding them in place and protectingthem from dust or other improper matter. Upon the circumference of B atany point and at as many points as desired may besuitable bearings I toengage any suitable device for the transmission of power.

Arranged for operation the parts are as follows: A being properly hungupon its shaft O, with the iiange Gr on its lower side, thefriction-rolls D are placed on end on the bearing O on G and against theface of the flange F. B is then placed over A, inclosing the rolls D byflange H and resting on G by means of the travelers E upon track L. Inrotation the oil-ducts passing through the axles of E permit continuouslubrication of the faces of D and are not interfered with by themovement of the travelers E. Any surplus fluid used in lubricating orcleaning D is convenientlyk drained yoff by the groove K, which for thepurpose may be furnished with a drip. The diameter of B between theinner faces IOO of II is slightly greater than the diameter of A fromthe faces of F plus the diameter of the rolls D. The parts being thusplaced for operation,`A in rotating` upon its eccentric-axis Ccommunicates to all points of B an oscillatory motion equal to twice thecccentricity of A.

Although I have described my improvement as applied to a machine used ina horizontal plane or one practically so, it may with such slightvariation of form as will suggest itself to any practical machinist beapplied to eccentric inotion in any plane, vertical or otherwise.

I am aware that prior to my invention eccentrics have been used havingboth roller and ball bearings between the eccentric wheel and theencircling strap or ring. I therefore do not claim novelty in such acombination broadly; but,

Having thus described my invention so that any one skilled in practicalmechanics may make and operate it, what I claim as novel, and desire tosecure by Letters Patent, is"

l. In an eccentric, the combination of an eccentric body, having aflange G, a ring B su rron ndin g said eccentric body, friction-rolls Dinterposed between said eccentric and ring, and travelers E mounted uponand supporting said ring, and traveling upon said flange

